In this episode, Mikhaila had two different guests to discuss an intro to astrophysics and potentially alien life.
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David Sobral is a Portuguese extragalactic astrophysicist and lecturer, best known for the discovery of galaxy CR-7. He illustrates the complexities of many basic principles such as gravity, time-space nuclear fusion, and more.
Abraham “Avi” Loeb is an Israeli-American theoretical physicist and author of the recent book “Extraterrestrial: The First Sign of Intelligent Life Beyond Earth.” His controversial book explores the recent discovery of an object named Oumuamua that moves and defies the realities of everything we have seen in our solar system to date.
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Find more David Sobral on his YouTube Channel @XGAL: David Sobral’s Astronomy Outreach and Science and on his website https://xgalweb.wordpress.com/
Find more Avi Loeb in his book Extraterrestrial: The First Sign of Intelligent Life Beyond Earth, and find more information on the Harvard Website: https://lweb.cfa.harvard.edu/~loeb/
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Show Notes:
[2:00] David Sobral’s background and beginners look into astrophysics
[3:00] An astrophysics explanation of time, gravity, and space
[8:00] What is the difference between a comet and an asteroid?
[10:00] Black holes
[14:30] Dark Matter
[18:00] Wormholes
[21:00] How much quantum physics do you need to understand to get into astrophysics?
[24:30] The spookiness of quantum entanglement
[28:30] David Sobral tells us how individuals interested in astrophysics can start down the path towards learning more.
[31:00] The theory of the multiverse
[32:00] Discovering and naming galaxy CR-7
[35:00] Introduction of the second guest, Dr. Avi Loeb, recounting his controversial take on an object first viewed in 2017
[40:30] The common overlap of interest in philosophy and those working in astrophysics
[43:00] What is the object Oumuamua, and why is it such a big deal?
[47:00] Scientific explanation on the viewed reflection of an object in space can mean.
[50:00] What the purpose of the object could be if it is indeed not of natural origin
[53:00] How scientific debates with new theories tend to unfold, what areas are explored, and who does what type of questioning?
[58:30] When conservative scientific thinking ignores reality and stops progress and innovation for extended periods.
[1:00:30] Do aliens exist?